Oxidizing paraffins, waxes, and the like



valuable organic compounds Patented June 10, 1930 UNITED STATES PATENT t-ms FBITZ'HOFMANN, OF IBBESLAU, GERMANY, ASSIGNOR \TO I. G. FARBENIND'US'IBIE AKTIENGESELLSCHAFT, OF FRANKFORT-ON-THE-MAIN, GERMANY, A CORPORATION or GERMANY v oxmrzme rswrm's,

waxns, Ann was LIKE Ilo Drawin Application filed March 14, 1928, Serial No. 261,706, and in Germany March 18,1927.

This invention relates to the reduction of y oxidizing parafiins, waxes and the like.

, In carrying out the oxidation of paraflin hydrocarbons, waxes and the like by means of a gas containing oxy en such as air, itis alreadyl known to empioy ,inor anic catalysts, suc as metals, metallic oxi' s or salts, I including metal salts of organic acids.

I have now.found that this reaction may be considerably accelerated by employing the said catalysts associated with organic nitrogenous bases. As examples of such nitrogenous bases may be mentioned aniline, pyridlne, quinoline, butylamine, toluidme and cyclohexylamine.

The following example will further illustrate the nature of the said invention and the surprising result thereby obtained, but

the invention is not limited to this example.

' Ewample 1 my hand.

presence of an inorganic catalyst associated with organic nitrogenous bases.

3. A process for the oxidation of parafiin hydrocarbons, which comprises oxidizing paraflin wax by means of airv in the presence of manganese soap associated with hexamethylenetetramine.

In testimony whereof I have hereunto set FRITZ HQEMANN.

-When araflin wax alone is oxidized with air at 1 0 0., it gives the saponification I values 88.8 and 147.4'after being treated for 2 and 4 hours respectively. If 1 per cent of manganese soap be added before the oxidation, the corresponding values are 97.2 and 169.5; whilst if the l per cent of manganese soa be added associated with 0.1 per cent of exameth lenetetramine, the saponification "value a ter 2 hours amounts to 135.3;

I after 4 hours to 217, and after 6 hours to Instead of hexamethylenetetramine and manganese soap, use may also be made of other organic bases, such as amylamine, or

a of other catalysts such as. cerium oxid or salts, for example, cerium stearate.

'.' WhatIclaimisu 1-. A process for the oxidationof parafiin hydrocarbons, which comprises oxidizing the said hydrocarbons by means of a gas containing oxygen in'the presence of an inorganic catalyst associated with organic nitrogenousbases.

2. A process for the oxidation of p'ar'atfin hydrocarbons, which comprises oxidizing the said hydrocarbons by means of air in the 

